Kent · England
Langton Green Window Mastic
Our applicators work in Langton Green on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- A bead that does not match the frame
- Damp patches on the reveal after heavy rain
- Old mastic that has gone black or come away
Window mastic for homes and businesses in Langton Green
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we will tell you. If you have rushed sealant from a window installation and cracked internal joints between frame and plaster, we can help.
Homes around Langton Green range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
Every job comes with a 12-month guarantee.
- Location
- Langton Green (TN3, TN4)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Langton Green
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too in Langton Green and across Kent. We can quote a run of properties together, and we are fully insured for the work.
Places near Langton Green
Other services in Langton Green
Common problems we fix in Langton Green
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.
If you can see any of these, it’s time to have the joints looked at:
- Cracked internal joints between frame and plaster
- Untidy mastic left by window fitters
- Old mastic that has gone black or come away
- Leaking joints at the ends of sills
Homes close to Church of All Saints include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Questions to ask before booking
- How much experience the applicator has
- Whether they seal over old material or remove it
- What the cure time is
- How the surfaces are prepared before sealing
How the visit works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a handful of frames, longer for a whole house. In a smaller place like Langton Green, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Your questions about window mastic in Langton Green
Do you work for landlords with property near Tunbridge Wells station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Langton Green?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Where do you work from?
We work from Crawley. Our applicators cover Langton Green.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Will new mastic stop draughts?
Often, yes. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used before we leave.
What should I tell you?
A short description and the location, plus photos if you have them. If we need more, we will ask.
How we quote for window mastic
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- The type of sealant required
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- The problem you’ve noticed
- Where the property is
- Access, such as stairs, a lift or height
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Damp problems in the wall away from the window
- Faulty window hardware
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Composite doors
- uPVC windows
- Timber windows & doors
- Aluminium frames
- Window sills
- Patio & French doors
What happens if it’s left?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. Around Langton Green, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- Over 20 years’ experience
- Every job guaranteed for a year
- Rated 4.9 stars on Google
- An ARBOMaster approved applicator
Take a look at what affects the cost and customer reviews.
What window mastic looks like in Langton Green
With historic houses such as Groombridge Place (about 1.5 miles south-west) nearby, there’s older building stock in the area around Langton Green as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Tunbridge Wells station? Then renewing tired window mastic between tenants heads off draught and damp complaints. Schools such as Langton Green Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Langton Green is about 2 miles west of Royal Tunbridge Wells, in Kent. For window mastic in and around Langton Green, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Kent from our Crawley base. Across Kent, we cover 922 places, Langton Green among them. Crawley is on our list too, about 18 miles from Langton Green.
Work in TN3 and TN4 works the same way as everywhere else we cover. You’ll find streets such as Ryders, Little Footway and Hazelbank. Close by, we work in Rusthall (1 mile east), Bullingstone (1 mile north), Speldhurst (1 mile north), Poundsbridge (2 miles north) and Stockland Green (2 miles north-east). Further out, we also cover Sevenoaks (10 miles north), Tonbridge (5 miles north-east), Kings Hill (13 miles north-east), Paddock Wood (8 miles east), Southborough (3 miles north-east) and Edenbridge (8 miles north-west).
What’s near Langton Green
In Langton Green, that means homes and buildings near Holmewood House School, Bennett Memorial Diocesan School and The Oak pub and the streets around them. The closest station to Langton Green is Tunbridge Wells station, about 2.1 miles east. Other landmarks nearby include Bolebroke Castle (4.8 miles west) and The Amelia (2.1 miles east). The countryside around Langton Green includes Broadwater Warren RSPB Reserve and Barden Lake.
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.